They show an organism was there, but are not the actual organism itself (which would be a body fossil). Dinosaur footprints and worm burrows are examples of trace fossils, as are coprolites ...

Ammonite fossils, an example is shown here, are sea creatures that became extinct about 65 million years ago. Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms ...

Ammonite fossils, an example is shown here, are sea creatures that became extinct about 65 million years ago. Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms ...

When fossil remains were found that were unlike anything living at the time, some scientists argued that they were unusual examples of living creatures, or that animals known only from fossils ...

Chinese palaeontologists have found what could be the world’s oldest bird fossil, a “landmark” find that could shed light on one of the most important chapters in evolutionary history.

But nevertheless, he adds, it’s an “especially nice example” of a regurgitalite fossil. Besides giving millions of people around the world the chance to giggle about vomit like children, ...